package com.xyazm.product.service.impl;

import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xyazm.common.constant.ProductConstant;
import com.xyazm.common.utils.PageUtils;
import com.xyazm.common.utils.Query;
import com.xyazm.product.dao.AttrAttrgroupRelationDao;
import com.xyazm.product.dao.AttrDao;
import com.xyazm.product.dao.AttrGroupDao;
import com.xyazm.product.dao.CategoryDao;
import com.xyazm.product.entity.AttrAttrgroupRelationEntity;
import com.xyazm.product.entity.AttrEntity;
import com.xyazm.product.entity.AttrGroupEntity;
import com.xyazm.product.entity.CategoryEntity;
import com.xyazm.product.entity.vo.AttrGroupRelationVo;
import com.xyazm.product.entity.vo.AttrRespVo;
import com.xyazm.product.entity.vo.AttrVo;
import com.xyazm.product.service.AttrService;
import com.xyazm.product.service.CategoryService;

@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

	@Autowired
	private AttrAttrgroupRelationDao attrAttrgroupRelationDao;
	@Autowired
	private AttrGroupDao attrGroupDao;
	@Autowired
	private CategoryDao categoryDao;
	@Autowired
	private CategoryService categoryService;

	@Override
	public PageUtils queryPage(Map<String, Object> params) {
		IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), new QueryWrapper<AttrEntity>());

		return new PageUtils(page);
	}

	@Transactional
	@Override
	public void saveAttr(AttrVo attr) {
		AttrEntity attrEntity = new AttrEntity();
//      attrEntity.setAttrName(attr.getAttrName());
		// 将attr里面的数据全都拷贝到attrEntity对象里面
		BeanUtils.copyProperties(attr, attrEntity);
		// 1、保存基本数据
		this.save(attrEntity);
		// 2、保存关联关系
		if (attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId() != null) {
			AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
			relationEntity.setAttrGroupId(attr.getAttrGroupId());
			relationEntity.setAttrId(attrEntity.getAttrId());
			attrAttrgroupRelationDao.insert(relationEntity);
		}
	}

	@Override
	public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
		QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("attr_type",
				"base".equalsIgnoreCase(type) ? ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()
						: ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());
		// 查询指定三级分类下的数据
		if (catelogId != 0) {
			queryWrapper.eq("catelog_id", catelogId);
		}
		String key = (String) params.get("key");
		// 根据key的内容模糊查询
		if (!StringUtils.isEmpty(key)) {
			// attr_id attr_name
			queryWrapper.and((wrapper) -> {
				wrapper.eq("attr_id", key).or().like("attr_name", key);
			});
		}
		IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), queryWrapper);

		PageUtils pageUtils = new PageUtils(page);
		List<AttrEntity> records = page.getRecords();
		List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
			AttrRespVo attrRespVo = new AttrRespVo();
			// 将attrEntity的数据拷贝到attrRespVo
			BeanUtils.copyProperties(attrEntity, attrRespVo);

			// 1、设置所属分组名称
			if ("base".equalsIgnoreCase(type)) {
				AttrAttrgroupRelationEntity attrId = attrAttrgroupRelationDao.selectOne(
						new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
				if (attrId != null && attrId.getAttrGroupId() != null) {
					AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
					attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
				}

			}
			// 2、设置分类名称
			CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
			if (categoryEntity != null) {
				attrRespVo.setCatelogName(categoryEntity.getName());
			}
			return attrRespVo;
		}).collect(Collectors.toList());

		pageUtils.setList(respVos);
		return pageUtils;
	}

	@Override
	public AttrRespVo getAttrInfo(Long attrId) {
		AttrRespVo respVo = new AttrRespVo();
		AttrEntity attrEntity = this.getById(attrId);
		BeanUtils.copyProperties(attrEntity, respVo);

		if (attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()) {
			// 1、设置分组信息
			AttrAttrgroupRelationEntity attrgroupRelation = attrAttrgroupRelationDao
					.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
			if (attrgroupRelation != null) {
				// 设置属性分组id
				respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
				AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
				if (attrGroupEntity != null) {
					// 设置属性分组名称
					respVo.setGroupName(attrGroupEntity.getAttrGroupName());
				}
			}
		}
		// 2、设置分类信息
		Long catelogId = attrEntity.getCatelogId();
		List<Long> catelogPath = categoryService.findCatelogPath(catelogId);
		respVo.setCatelogPath(catelogPath);
		CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
		if (categoryEntity != null) {
			// 设置分类名称
			respVo.setCatelogName(categoryEntity.getName());
		}
		return respVo;
	}

	@Transactional
	@Override
	public void updateAttr(AttrVo attr) {
		AttrEntity attrEntity = new AttrEntity();
		BeanUtils.copyProperties(attr, attrEntity);
		this.updateById(attrEntity);

		if (attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()) {
			// 1、修改属性分组关联
			AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
			relationEntity.setAttrGroupId(attr.getAttrGroupId());
			relationEntity.setAttrId(attr.getAttrId());
			// 查询属性和属性分组关联表中是否存在数据,存在则更新,不存在则添加
			Integer count = attrAttrgroupRelationDao
					.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
			if (count > 0) {
				attrAttrgroupRelationDao.update(relationEntity,
						new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
			} else {
				attrAttrgroupRelationDao.insert(relationEntity);
			}
		}
	}

	/**
	 * 根据分组id查找关联的所有基本属性
	 * 
	 * @param attrgroupId
	 * @return
	 */
	@Override
	public List<AttrEntity> getRelationAttr(Long attrgroupId) {
		List<AttrAttrgroupRelationEntity> entities = attrAttrgroupRelationDao
				.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));

		List<Long> attrIds = entities.stream().map((attr) -> {
			return attr.getAttrId();
		}).collect(Collectors.toList());

		if (attrIds == null || attrIds.size() == 0) {
			return null;
		}
		Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
		return (List<AttrEntity>) attrEntities;
	}

	/**
     * 获取当前分组没有关联的所有属性
     * @param params
     * @param attrgroupId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //1、当前分组只能关联自己所属的分类里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2、当前分组只能关联别的分组没有引用的属性
        //2.1)、当前分类下的其他分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> collect = group.stream().map(item -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());

        //2.2)、这些分组关联的属性
        List<AttrAttrgroupRelationEntity> groupId = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrIds = groupId.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        //2.3)、从当前分类的所有属性中移除这些属性；
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if(attrIds!=null && attrIds.size()>0){
            wrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
        PageUtils pageUtils = new PageUtils(page);
        return pageUtils;
    }


	@Override
	public void deleteRelation(List<AttrGroupRelationVo> vos) {
		 //relationDao.delete(new QueryWrapper<>().eq("attr_id",1L).eq("attr_group_id",1L));
        List<AttrAttrgroupRelationEntity> entities = vos.stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());
        attrAttrgroupRelationDao.deleteBatchRelation(entities);
	}

}